JVC KDG-140-J Schematic

SCHEMATIC DIAGRAMS

CD RECEIVER

KD-G140J,KD-G240J,KD-G244UI,KD-G245U

KD-G245UN,KD-G245UT,KD-G245UH,KD-G248UF

KD-G341E,KD-G341EX,KD-G341EY,KD-G341EU
KD-G342E,KD-G342EX,KD-G342EY,KD-G342EU
KD-G343E,KD-G343EX,KD-G343EY,KD-G343EU

KD-G347SEE,KD-G347BEE,KD-G394UI,KD-G395U

KD-G395UN,KD-G395UT,KD-G395UH,KD-G396U

KD-G396UN,KD-G396UT,KD-G396UH,KD-G398UF

KD-G396SUI, KD-G299UR

DVD-ROM No.SML2008Q1

only for
KD-G140/KD-G240
KD-G394/KD-G395
KD-G396/KD-G398
KD-G299

only for
KD-G240/KD-G341/KD-G342
KD-G343/KD-G347/KD-G394
KD-G395/KD-G396/KD-G398
KD-G299

Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade)
Lead free solder used in the board (material : Sn-Cu, melting point : 230 Centigrade)

only for

KD-G347

only for
KD-G140
KD-G240
KD-G299

only for
KD-G341
KD-G342
KD-G343
KD-G347

Contents

Block diagram
Standard schematic diagrams
Printed circuit boards

2-1
2-3
2-8

COPYRIGHT 2008 Victor Company of Japan, Limited.

No.MA372SCH<Rev.002>

2008/6

Safety precaution

!

!

Burrs formed during molding may be left over on some parts of the chassis. Therefore,
pay attention to such burrs in the case of preforming repair of this system.

Please use enough caution not to see the beam directly or touch it in case of an
adjustment or operation check.

Block diagram (For KD-G140,KD-G240,KD-G244,KD-G245,KD-G248,KD-G394,KD-G395,KD-G396 and KD-G398)

CD MECHA

Q101,Q201
Q301,Q302

PHOTO SW

SPINDLE

MOTOR

FEED

MOTOR

LOAD

MOTOR

SW1

REST SW

CD PICK UP

PICK UP

FOCUS &

TRACKING

COIL

SW1
SW2

SP+/-

FEED+/-

LOAD+/-

REST (PSW)

VF1, VF2
VT1, VT2
MD, LD

TRK+/­FOCUS+/-

CD servo, Main amplifier & System control section

LD LDO

SW1
SW2
PSW
VF1

CN101

VF2

CN501

VT1
VT2
MD

SP+/­FEED+/­LOAD+/­FOCUS+/­TRK+/-

IC501

BTL DRIVER

FWD
REV
FOO
FMO
DMO
TRO
DRV_MUTE

Q531

X551

16.9344MHz

IC701

CPU

SUBMUTE

MUTE

SDA
SCL

VOL_M

CD_L/R

IC1

FM/AM TUNER

TUN_L/R

IC161

E.VOLUME

AUX_L/R

X1

4MHz

Used for
KD-G140,KD-G240
KD-G394,KD-G395,KD-G396,KD-G398

Q352,Q782

LINE OUT

RL/R

MUTING

L_MUTE

Q781,Q783

MUTE CONTROL

P_MUTE

Q301

RLO
RRO

OUTFL, OUTFR
OUTRL, OUTRR

MUTE

IC301

FL+/­FR+/­RL+/­RR+/-

POWER AMP.

J1
ANT

REAR
LINE OUT

AUX
INPUT

LCD & Key control section

COM1 to 3
S1 to 52

LCD MODULE

J601

AUX_L/R

LCD1

LCDDA
LCDCE

IC661

LCDCLK

LCD DRIVER

ENC1

JS686

ENC2

ENCODER

S601 to S619

KEY0 to 2

KEY MATRIX

D630

POWER LED

D631 to D654

LIGHTING DISPLAY

IC681

REMOCON

REMOCON (REMOTE)

Used for
KD-G140,KD-G240
KD-G394,KD-G395,KD-G396,KD-G398

ACC5V

ILM.10V

CN701

CJ601

LCDDA
LCDCE
LCDCLK

ENC1
ENC2
KEY0 to 2
REMOTE

SUB_TXD
SUB_RXD
SUB_SCLK
SUB_CS
SUB_REQ
/HOLD
/RST

IC702

SUB CPU

DIM

ANT

/STBO

Q881,Q882

DIMMER

CONTROL

Q701,Q702

STANDBY

32.768kHz

RESET

IC703,S701

PS2

Q976,Q977

ILM.ADJ

CTRL

X701

8MHz

X702

RESET

PS2

3.3V,SW5V,ACC5V
VDD5V,CD8V,9V,ILM.10V

EACH BLOCK

ACC.IN
EXT

IC901

REGULATOR

MEMORY

ANT

D851

POWER

ANTENNA

POWER ANT

Used for
KD-G244, KD-G245
KD-G248, KD-G394
KD-G395, KD-G396
KD-G398

CN901J321

SPK
BATTERY

2-1

Block diagram (For KD-G341,KD-G342,KD-G343,KD-G347S and KD-G347B)

CD MECHA

Q101,Q201
Q301,Q302
PHOTO SW

SPINDLE

MOTOR

FEED

MOTOR

LOAD

MOTOR

SW1

REST SW

CD PICK UP

PICK UP

FOCUS &

TRACKING

COIL

LCD & Key control section

SW1
SW2

SP+/-

FEED+/-

LOAD+/-

REST (PSW)

VF1, VF2
VT1, VT2
MD, LD

TRK+/­FOCUS+/-

LCD1

LCD MODULE

CN101

CN501

COM1 to 3
S1 to 52

CD servo control section

VF1
VF2
VT1
VT2
MD
LD

SP+/­FEED+/­LOAD+/­FOCUS+/­TRK+/-

PSW

SW1
SW2

SRAMVDD

IC661

LCD DRIVER

IC521

Q521

RF AMP

FOP
TRP
TRVP
SPOUT
RFENV

IC501

BTL DRIVER

1.5V REG.

LCDDA
LCDCE
LCDCK

CD.L/R

NRST
IRQ
STAT
MLD
MDATA
MCLK
NPWDOWN

16.9344MHz

FWD
REV
TRAV
BTL_MUTE

IC981

X521

VDD5V

Main amplifier & System control section

X701

8MHz

X702

32.768kHz

IC702,S701

RESET

Q976,Q977

PS2

IC771

EPROM

RST

PS2

E2PROM_DI
E2PROM_DO
E2PROM_CLK

IC701

CPU

TUSDA
TUSCL

RDSDA
RDSCL

IC71
RDS

DETECTOR

X71

4.332MHz

MUTE

CD.L/R

VOL_SDA
VOL_CLK

IC161

E.VOLUME

DIMOUT

PCN

TELMUTE TELMUTE

Q882,Q883

DIMMER

CONTROL

Q891

TEL MUTE

ILM.ADJ

IC1

FM/AM TUNER

MPXOUT

TU.L/R

IN2L/R

X1

4MHz

Used for KD-G341,KD-G342,KD-G343

Q341

LINE OUT

REAR L/R

MUTING

Q781,Q782

MUTE CONTROL

LEFT.REAR
RIGHT.REAR

LEFT.FRONT
RIGHT.FRONT

MUTE

IC301

FL+/­FR+/­RL+/­RR+/-

POWER AMP.

POWER

3.3V,SW5V,ACC5V
VDD5V,CD8V,9V,ILM.10V

EACH BLOCK

ACC_IN
EXT

IC901

MEMORY

REGULATOR

J1
ANT

REAR
LINE OUT

CN901J321

SPK
BATTERY

AUX
INPUT

J601

AUX.L/R

ENC1 (VOL1)

JS686

ENC2 (VOL2 )

ENCODER

S601 to S619

KEY0 to 2

KEY MATRIX

D630

POWER LED

D631 to D654

LIGHTING DISPLAY

ACC5V

ILM.10V

CN701

CJ601

LCDDA
LCDCE
LCDCK
VOL1
VOL2
KEY0 to 2

2-2

AUX.L/R

IC101

AUX IN AMP